Summer tire Updated September 2026

Sumitomo HTR Z III review

Name: Sumitomo HTR Z III
Brand: Sumitomo

Relative score from owner reviews only

Owners 58 · 42 reviews analysed

How scores work

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The Sumitomo H/TR Z III is widely regarded as a high-value performance tire that offers a compelling balance of dry grip, comfort, and affordability. While it is frequently praised as a cost-effective alternative to premium brands for daily driving and spirited street use, some users note limitations in extreme wet-weather cornering and high-horsepower traction.

Two scoring systems, side by side

Owner scores come from reviews found online; road-test scores come from instrumented tests. Where they disagree, it is usually a discipline owners rarely push to the limit.

How scores work

Relative score: 0–100. Blends road tests (60%) and owner reviews (40%) category by category, the same way on every TireWheelGuide page. With only one of the two, the missing half is estimated from it, so the score stays closer to average. It needs at least one road test or five owner reviews.
Road tests: 0–100 per score, from published tests, newer tests counting more. Each result is compared with every other tire in the same test, so a win against a strong field counts for more. The average tested tire gets 70, the best 100; with only one or two tests a tire stays nearer 70. The discipline rows show % of the best tire in that test.
Owner reviews: 0–100 from the owner reviews we found online, adjusted for how generously each site rates and scaled like the road tests: the average tested tire gets 70. With only a few reviews a tire stays near the average.

By owner reviews

58/100

From 42 owner reviews analysed, scaled like the road tests: the average tested tire gets 70.

Would buy again 83%

Dry

Overall dry

68.3

Corner stability

Dry traction

65.6

Steering response

65.3

Wet

Overall wet

62.1

Hydroplaning resistance

Wet traction

Snow & ice

Overall snow & ice

15.1

Comfort

Overall comfort

65.5

Ride comfort

61.8

Noise

Overall noise

63.9

Treadwear

Overall treadwear

59.8

Handling

Overall handling

66.5

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By road tests

Scaled across every tested tire: the average gets 70, the best 100.

Treadwear

70.2

Sumitomo HTR Z III specs & sizes

Prices vary by size, so each one links out separately.

Specifications
Tread depth	10/32″
UTQG	300 A A
Sidewall	Blackwall
Max pressure	50 psi

Size	Retailer
225/40 R19	Amazon

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What owners like and dislike

Themes extracted from 42 owner reviews found online.

Pros

Excellent price-to-performance ratio
Strong dry handling and steering feedback
Quiet and comfortable ride quality
Predictable performance for daily driving

Cons

Inconsistent wet-weather side grip during cornering
Limited traction under heavy acceleration on high-horsepower vehicles
Not suitable for winter or freezing conditions
Variable tread life depending on driving style and vehicle weight

Worth knowing

High-horsepower RWD vehicles (e.g., 500whp Mustang) may experience significant wheel spin compared to premium performance tires.
Users with staggered setups report good longevity, though the inability to rotate tires can accelerate wear on the rear axle.
Owners of lighter, nimble vehicles like the Mini Cooper report high satisfaction with handling and wet-weather performance.